Before spending a skill point, check what makes the skill usable: character level, weapon type, resource and action rules. A powerful description is only useful when the current hero can meet its conditions.
Check the progression rule
The developer’s November 2025 plan described one skill point per level and up to five investments in a skill. The launch-period player guide reports the same broad system. Exact current rank values should still be read in the installed game.
A required hero level is different from a skill’s rank. A skill becoming visible does not necessarily mean the hero can invest in it immediately.
Spend deliberately
- Read the full description, including the required weapon.
- Check the current cost and whether it increases with further investment.
- Decide which problem the next point solves for this party.
- Compare that benefit with another skill you can actually use now.
- After investing, check the selected active action before the next encounter.
The player guide describes switching the assigned active skill by right-clicking the slot next to the basic attack. If your input method differs, use the game’s Controls menu rather than guessing a controller button from a keyboard guide.
Active, passive and free action
A passive effect is not another button to press each round. A free action can still have a resource cost and cooldown. Read the exact wording before combining it with the hero’s main action.
Old specialization plans
Earlier announcements discussed specializations and future abilities. Those plans are not a complete current unlock tree. This guide does not invent specialization names, a respec vendor, skill reset prices or a guaranteed late-game progression path.
Sources & version notes
Mechanics are reported in the original player guide; developer sources support the broader system. This is not an independent verification of every tooltip or balance value.
- News from Underkeep: Classes, Races & Skills (2025-11-04)
- VoidEngineer — original Underkeep Player’s Guide (updated 2026-11-08; checked 2026-11-09)
- Closer to the Depths (2026-05-30)
Compiled from public sources. We have not personally played or tested these procedures. Check your installed build and its tooltips when details differ.